Summary

1550nm Direct Modulation will cause serious Laser Chirp Effect, which will lead the Laser Bias Current to be modulated by CATV signal, and the Optical Frequency will shift and jitter. The Chirp will cause serious Distortion in 1550nm. This Distortion will become more serious as the Increase of Transmission Distance, Transmission Bandwidth and the Number of Channels. Our device adopts High Linear & Low Chirp DFB Laser, on the basis of 1310nm Multi-Function Optical Transmitter, increasing the Predistortion Compensation and Chirp Compensation that will greatly improves the Transmission Index of the system. It can be used for 1550nm System Analog and Digital Multiplexed Multi-Channel Signals Optical Transmission within the range of 20Km, and also can be used for Narrow Wave Multiplexing and IP/QAM of DWDM. In order to add the 1550 band Inter-Cut Function, this device can also be equipped with DWM Wave Interpolation Device and Optical Adjustable Attenuator, according to the Optical Signal Carrier Value and Main Wave Optical Power Size automatically finishing Inter-Cut Optical Power, and also supporting Network Management Control, to solve the problem of Inter-Cut Power and Level changes caused by the Main Wave Optical Power and Carrier Channel Changes after User Application. The Main Wave Input is 1535 ~ 1565nm, Inter-Cut Wave is this device’s Laser Wavelength.

Features:

l We Choose ORTEL or AOI-1550nmITU Wavelength, with Semiconductor Refrigeration/Heating & Backlight Monitoring DFB Laser

l Main Control Circuit with computer control, LCD Working Status Display, Automatic Alarm until Self-Protection

l The Electric Signal Amplifier adopts PDI GaAs Low Noise, High Gain and Large Dynamic Module, Its Inter-Cut CNR Features better than China National Standard

l High Efficiency Laser Predistortion Correction, Chirped Compensation Circuit, Effective Improvement of Nonlinear Distortion Index

l Hot Pluggable Standby Power Supply Module, Anti Surge, Overvoltage and Overcurrent Protection, Anti Lightning Voltage≥6000V

l Optical Transmission Carrier Bandwidth 47～862/1000MHz, Bandwidth Inside Flatness≤±0.75dB

l The built-in WDM component can access the main broadcast optical signal and complete the insertion function

l Option Type II Condition Monitoring Transponder guaranteed to meet China National Standard and Compatible with SCTAE HMS WEB Standards

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Technical Specifications:

Special Note:

Although there are many advantages in optical interpolation, the main wave and the interpolated carrier channel change due to the change of demand, the power of the main wave power is switched with the looped network or the multi-line optical path, and the main wave power changes with the power distribution of the front-end equipment room. The latter stage optical amplification is not linear and causes the output level to change, which will cause the output level error of the main wave and the interpolated signal, the level difference increases, and the transmission index decreases.

The application of fully automatic optical interpolation can simplify this series of complex problems, through function settings or network management remote control, to achieve the desired insertion effect.

Application:

Order Info.

Company Profile

Founded in 1988, Zhejiang Huanshun Network Technology Co., Ltd. is located in Yuyao, the birthplace of seven thousand years of ancient culture, and has the reputation of “Plastic Kingdom” and “Hometown of Moulds”. The registered capital is eight million dollars and the paid-in capital is five million dollars, more than 100 employees. At the beginning of the company's establishment, it was positioned as a photoelectric transmission equipment. Optical transmitters, optical receivers and optical amplifiers are the main products of the company. With the digital transformation of cable television transmission, two-way transformation and the advancement of the construction of next-generation broadcasting and television networks, the company main products are continuously upgraded and continuously innovated. The new generation of FTTH products are high-power multi-output (4-64 channels), FWDM fiber amplifiers, WDM type, 1550 filter type ultra-low optical power receiver, FTTH ONU (WIFI) + CATV reception. Dual fiber&single fiber (WDM) optical terminal, FTTH ONU or WIFI E/GPON optical terminal, EPON OLT + EYDFA field passive optical fiber access central office.

Factory workshop area: 8,000 square meters Safety: three levels of safety production standardization and environmental protection facilities: ISO 14001 environmental management system certification.

Office building scale: The total number of office staff is about 40, including design and development, sales, finance, production management personnel, etc. Area: 2,640 square meters

As a company with independent research and development, production and sales, it has gathered a large number of experienced professional technical teams and management teams to lay a solid foundation for the company's development. Since 1990, the company has obtained ISO9001, ISO14001, ISO18001, 3C certification, and has obtained 13 national patents, 10 national computer software copyrights, 18 national industry product network access licenses, and provincial high-tech. enterprise.

Adhering to the core values of “gratefulness, innovation, pragmatism and mutual benefit”, the company is committed to becoming a cable network integrated service solution provider and building the first brand of cable TV access network application services. In the future, we will promote the smart community, smart retirement and smart healthcare, and build a smart community service system that is sufficient for wired networks.

"Concentrating on Providing Competitive Equipments, HUANSHUN Servies You Continuously" is the company's business philosophy. "Sincerely returning to the society and making good products" is the common vision of generation after generation.